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Continental Breakup and Sedimentary Basin Formation

Citation

Coffin, MF, Continental Breakup and Sedimentary Basin Formation, EOS, Transactions American Geophysical Union, America, 73, 6, pp. 66-67. (2006) [Newspaper Article]

Abstract

Episodic magmatism has resulted in the emplacement of large igneous provinces (LIPs), including continental flood basalts and associated intrusives, volcanic/intrusive passive margins, oceanic plateaus, submarine ridges, ocean basin flood basalts, and seamount chains (Figure 1). LIPs represent major global events, whose genesis and evolution are directly linked to mantle dynamics. Recent research has documented important temporal, spatial, and compositional relationships among LIPs. Large volumes of lava and associated intrusives are commonly produced in short episodes and may be related to changes in rate and direction of plate motion. Exceptions include some submarine ridges that record persistent extrusion as a plume trail. Geochemical studies of rocks from these environments suggest lower to upper mantle sources for the magma, with regional variations due to mantle heterogeneities and the nature of the crust through which the magma passes.

Item Details

Item Type:Newspaper Article
Research Division:Earth Sciences
Research Group:Geology
Research Field:Marine Geoscience
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Earth Sciences
Author:Coffin, MF (Professor Mike Coffin)
ID Code:75238
Year Published:2006
Deposited By:IMAS - Directorate
Deposited On:2012-01-18
Last Modified:2012-01-18
Downloads:0

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